A nurse is assessing a new parent and their newborn in a community health clinic. The parent reports that they have resumed smoking tobacco and eating fast food more frequently. Which of the following topics would be most important for the nurse to discuss with the parent?
A. Healthy eating and weight management.
B. Postpartum depression and self-care.
C. Smoking cessation and the effects of secondhand smoke.
D. On-demand feeding and schedules.